Surveying The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is 1 : 20,000 1 : 10,000 1 : 15,000 1 : 30,000 1 : 20,000 1 : 10,000 1 : 15,000 1 : 30,000 ANSWER DOWNLOAD EXAMIANS APP
Surveying The correction applied to the measured base of length ‘L’ is Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports Tension = (P - Ps)L/AE All of these Sag = L³w²/24P² where w is the weight of tape/m Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports Tension = (P - Ps)L/AE All of these Sag = L³w²/24P² where w is the weight of tape/m ANSWER DOWNLOAD EXAMIANS APP
Surveying The product of the distances of plumb point and horizon point of a vertical photograph from its principal point, is 3f2 f2 2f2 ½f 3f2 f2 2f2 ½f ANSWER DOWNLOAD EXAMIANS APP
Surveying Which of the following methods of offsets involves less measurement on the ground? method of oblique offsets method of ties all involve equal measurement on the ground method of perpendicular offsets method of oblique offsets method of ties all involve equal measurement on the ground method of perpendicular offsets ANSWER DOWNLOAD EXAMIANS APP
Surveying If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference toi) altitude bubble on index frameii) altitude bubble on index frame if it is to be used as a leveliii) altitude bubble on telescopeiv) altitude bubble on telescope if it is to be used as a level The correct answer is only (iii) only (i) both (i) and (iv) both (ii) and (iii) only (iii) only (i) both (i) and (iv) both (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Surveying If v, t and f/H are the ground speed of the aircraft, the shutter speed of the camera and the scale of the photograph respectively, then the amount of image displacement i = v. t. H/f i = v. t. (f/H) i = v. f/t. H i = t. H/v. f i = v. t. H/f i = v. t. (f/H) i = v. f/t. H i = t. H/v. f ANSWER DOWNLOAD EXAMIANS APP
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